Lubricating apparatus



atented Dec. 7, 1.926.l

entran stares earner nearest HOLLIS B. PAUL, OE CHICAGO,ILLINOISf-SSIGNOR T0 THE IBASSICK MANUFACTB ING COMPANY, F CHICAGO,ILLINOIS, ACORPORATION OF DELAWARE.

nunnrca'rmd APPARATUS. i

Application' inea Nvember 3o, 1923. serial No. 677,962.

My invention relates to improvementsrin lubricating apparatus, and isparticularly concerned with, though not limited to, improvements in theso-called high pressure lubricating systems no'w in common use, andcomprising a plurality of ittings, one of which issecured to each of thebearings t6 -be lubricated, and a lubricant compressor comprising meansfor subjecting the lubri- Acant to high pressuregand other means forsuccessively making sealed contact with the various fittings. Most, "ifnot all, autcrno-v biles, tractors, trucks, etc. require oil `'for' asdescribe comprising common means or. subjecting both the oil and thegrease to pressure.-

A still -further object of lmy invention so' to rovid'e a compressor ordispensingl device suc as described `in which a commonmeans is used formaking sealed contact with the ittings-,and conductingv either oil orgrease thereto. Y

3a Another object of invention ris to' provide a compressoror'dispensingdevice such as describe which 1s simple 1n construction,economical to manufacture, and easy to 'op-v erate.. Y

4o A Other objects-of my'invention will appear yas this descriptionprogresses, reference be.

ing had? tothe accompanying drawings, in

which Figure lis-acentral longitudinal sectionv 4e lthrough a compressorembodying my invention; Figure 2. is a transverse section taken on line2- -2 of Figure 1, andA f Y Figure 3 is a transverse section taken on 5oline 3-3 ofligure 1.

vReferring to the drawings, myimproved compressor or dispensing devicecomprises ably secured to 4 onef end, and provided with a mpple 7forming a centrally located aper- .ture 8 for the reception of thethreaded pis'- to n rod 9, which is provided at its outer end with a,suitable handle 10, and at its inner endwith a pistonv comprising theface plate 11, the followerl plate 12 and the cup leather. 13, all ofwhich are swiveled upon'the rezr an elongated barrel 5 having-a cap -6detachduced end portion 14 ofthe piston rod and secured thereto byswaging the end' of the piston rod, as shown. at 15.

The opposite end of the barrel is provided with a discharge nipple 16which' forms an internally threaded opening 17 for the reception of theexternally threaded plug 18.v

This plug has an inwardly extending tubular member or extension 19, theinner end of which is provided lwith a suitable stop 20 for a purposeabout to be described. The plug 18 is also provided with alongitudinally extending duct A21 adapted to` communicate with theadjacent end of the barrel.

The valve 'rod 22' extends transversely of the plug 18, and is providedwith tw'oports 23' and 24 which are arranged at right angles to eachother. The rst'of these ponts L 1s 'adapted to -be brought into registrywith the bore 19 of the tubularv member .19, and the second is adaptedto be brought into registry with the duct 21, respectively. 1 lpre# ferto provide the valve rod 22 with a s uitf' able'knurled handle l25 bymeans .of which the valve rodcanbe rotated.- The valve rod' `L is4preferably held in place by means 'ofasplit ring or torus 26, the innerand outerv sides of which engage the annular groove27 formed in thevalve rod'22, andthe annular groove 28 formed in the-plug 18respec- I Asleeve 29 islthreaded tothe'outer end of the plug'18 and provided withanincli'ned bayonet slot which is adapted to receive the ends of thepinlprojecting-,from the sides of the fitting 32. A. suitable cup leather33 is slidably mounted in the inner end of' the bore of the sleeve 29,and is yieldingly held against the annular 'shoulder '34 by means of aspring 35 interposed between it and the outer end of the plug 1,8.l Theconstruction of the coupling member just described, and the manner inwhichfit co-acts i l 18, tends to urge this piston toward thein ner endof the tubular member 19. The inward movement of the piston islimited bythe stop 20.f

The end of the compressor opposite the cap 6 is provided with a fillingopening 43 'which may be closed" by a suitable plug 44.v

yIn operation, lthe knurled. handle is turnedso as to position the valverod 22 in such manner as to turn the port24 at right angles to the' duct21. The plug 44 is then removed and the chamber between thepis,-

ton, which travels upon the tubular extension 19 -and between theadjacent end of the barrel, is filled with oil. The plug 44 is thenreplaced.'l The operator then removes' the cap 'Gand along with it thepiston rod 9. v `and the piston attached thereto, and subrel. The. cap6with the piston rod 9 and stantially fills the remaining part of thebar- K rkattached piston are then replaced. It' it is desired to supplylubricant to a fitting 32,

lwhich is adapted t0 receive oil, the compresf sor is attached to thisitting, the valve rod 22 isfturned to the-position shown in Figure1,`and the operator thereupon turns the piston rod 9 by means of thehandle 10 in the properdirectio'n to exert pressure upon the greasecontainedbetween lthe twov pistons. This pressure is transmitted to thepiston which slides vupon the tubular member 19, and compresses thespring 42 while at duct 21, the

the same time dischargingoil .through the gasket 33', and y`Into vthetit- -ting 32. t e

If, subsequently, the operator desires to supply'grease insteadof oil toa bearing,

the valve rod 22 is positioned to close'the duct 21 and establishcommunication between' the portion of the barrel containing f grease andthe fitting. Thereupomwhen the handle 10 is .turned in the properdirection l 'i 55'- to force the grease through the tubular membenl-9,the port 23 and gasket 33, into the -itting, the valve -will prevent adischarge of oil from the barrel but permit a discharge of greasetherefrom.

Inthe above manner ply either grease oroil to the fittings, as may -bedesired.` v s y It is desirableto make the space between the' cupvleather 33 and the plug 18 as small as possible so that there will be aslittle grease or oil -remaining in this space asp'osrecense `sible,thereby preventing the mixture of the two `lubricants when changing fromone to e the other.,

' In lubricating a mechanism by means of -my compressor, it is desirableto lubricate rst allof the bearings which require one kind of lubricant,and then all of the bearings Which require the other kind of lubricantsothat there will'not be so much chance for the two different lubricantsto mix in the space between thecup leather 33 andthe plug 18.

If desired', suitable indicia-may be used forgindicating when theknurled head 25 is turned to the proper positions to deliver the twodiiii'erent lubricants.

Having thus described my invention, what I claim is: l

LA lubricant compressor comprising a barrel having a centrally aperturedcap at one end and adischarge opening at the opposite end, a plugthreaded into said discharge opening and having an inwardly extendingtubular -member and also having a ports being adapted to be brought intoregistry with said duct, means on the outer end' of said'lvalve rodwhereby said valve rod can be turned, a coupling member secured to theouterend of said plug and provided with means for making sealedconnection with a fitting, an annular piston surrounding said tubularmember and reciprocable in said barrel, a spring coniine'd between saidpiston` and said plug for urging said piston toward the inner end ofsaid tubular member, and a piston rod extending lthrough the centralpiston rod having c aperture in said cap, said a pistonat its innerend.v

2. A lubricant compressor comprising` a barrel having an apertured capat one end and a dischargenhpening at the opposite end,

a plug secured 1n said discharge opening and having aninwardly extendingtubular member and also-having-a longitudinally extending ductcommunicating with the interior of said barrel,- a valve rod extendingtransversely vof said plug and having two ,ports therein, one of saidports being adapted to be brought into registry with the bore 'of saidtubular member, and the other of v e said p'ortsbeing adapted to bebrought into the operator can sup-- registry .with said duct, means onthe outer end of said valve rod whereby saidvalve rod can` be moved tobring said ports into registry with said bore and saidduct-respectively, a coupling member'secured to the' fitting, an annularpiston surrounding said tubular member and reciprocable in said barrel,a spring for ward the inner end of said tubular member, and a piston rodextending through the centralaperture in said. cap, said` piston Izodhaving a piston at its inner end.

' ing an inwardly extending said barrel, a valve rod having two 3. Alubricant compressor comprlsingja barrel having a cap at one end-andadscharge opening at the opposite end, a plug secured in said dischargeopening and connection with a tting, an annular vpiston w surroundingsaid`tubular member and recip- {roca-blel in saidbarr'el, and a pistonrod extending through the central aperture in said cap, said plstonrodlhaving a piston at its -inner end.

- A' end, a., plug secured in said discharge open-- 4. A lubricantcompressor. comprising a barrel having ai dlscharge opening -at one ingand having an inwardly lextending tubular member .and also having alongitudinally extending lduct communicating with theinterior ofVsaidbarrel-,means for con- Y trolling the passage of lubricant throughmemberjand reciprocable insaidibarrel, and'.

Vsaidtubular memberand saidfduct, a coupling member secured to theouter'end of said. plug and provided with'meansfor makannular pistonsurrounding said tu urging said piston to.

havtubular member ports ore of i mga sealedconnection with .a fitting, uar site endoi said barrel, said ing a piston at its inner end.

5. A, lubricant compressor comprising a piston rod havbarrel, a movablepartition in said -barrel I dividing 'said barrel into Atwo chambers,com-` mon meansv for subjecting the lcontents of bothchambers to,pressure; a common dischargepa'ssageway for both chambers, means I for.controlling the passage of lubricant-fromsaid chambers to said commonpassageway,

and means for establishing sealed connection between said'commonpassageway and Aa' fitting.

.6. A lubricant barrel divided into twol chambers, common means forsubjecting both of said chambers to pressure, and commonmeans foreffecting sealed connection between said chambers and a {ittingto besupplied withvlnbricant. Y

7. A lubricant compressor comprising two chambers, common means'forsubjecting the .contents of both chambers to pressure, means l common toboth of said chambers for effectingA sealed connection with a-itting,and

meansfor controlling the discharge of.lu.

bricant from 'said chamberSf.

barrel .having a threaded piston rod Vpro- 8. Alubricantcompressorcomprisingr i a".

jectng through one end-thereof, a piston Y carried bythe yinner end ofsaid piston rod,

a tube extending inwardly from the oppo site end of said' bariel, anannular piston surrounding said tube, 'a spring for urgin said pistontoward the inner end of sai member communicattube, and i a coupl-einging with said tu or effecting 'sealed con- 4 nection with a` lubricantreceptacle.`

In witness whereof, I hereunto subscribel j my name this 22 day ofNovember, 1923. l f

` y HotmS'BL-PAUL. i

